I was curious about how I could make a normal button, with a "selected" style or animation.
<button> I'm a button </button>

When you use Radiobuttons, you can see clearly that you have a selected style whenever you click on the button.
<input type="radio">

Now is the question, is it possible to have a selected style or animation (Not a click/hover animation) for the last button that you clicked (Without obviously having to use radiobuttons/checkbox).

If so, how does one make this?

JSFiddle if you want to use the code that I used in the GIF

I haven't found a lot of articles about this, or maybe just haven't looked good enough, anyways, maybe you people know how to do this?

CodePudding user response：

Just toggle a class with an onclick event:

btnState = false;
btn.addEventListener("click", () => {
  btn.classList.toggle("selected");
  btnState = !btnState;
});

In the CSS add:

.selected {
  background-color: red;
}

And add an id="btn" to the button in the HTML.

CodePudding user response：

1. Include the JS in your page.

2. In your HTML, similarly to what you would do by adding the name and value attributes to your <input type="radio">s you add the data-name and data-value attributes to the elements you wish to behave as <input type="radio">s. If you want one to be selected by default add the attribute/value data-selected="true" to it.

3. Target the selected elements in CSS with the [data-radio-selected='true'] selector.

document.addEventListener('DOMContentLoaded', () => {
  const radioGroups = {}

  document.querySelectorAll('[data-radio-name]').forEach( el => {
    const name = el.dataset.radioName;
    const value = el.dataset.radioValue;
    const selected = el.dataset.radioSelected === 'true';

    // Register radio
    radioGroups[name] = radioGroups[name] || {
      radios: [],
      selected: null
    };

    radioGroups[name].radios.push(el);

    if ( selected && radioGroups[name].selected == null ) {
      radioGroups[name].selected = value;
    }

    // attach listeners
    el.addEventListener('click', () => {
      radioGroups[name].radios.forEach( el => {
        el.dataset.radioSelected = 'false';
      })

      el.dataset.radioSelected = 'true';
      radioGroups[name].selected = value;
    })
  })
})

[data-radio-selected='true'] {
  background: red;
} 

<button data-radio-name="animals" data-radio-value="pig">
  Pig
</button>
<button data-radio-name="animals" data-radio-value="cow">
  Cow
</button>
<button data-radio-name="animals" data-radio-value="chicken">
  Chicken
</button>